Home / 9,210.98-13,804.91-3,939.80

Finding the Fourth Proportional to 9,210.98, 13,804.91 and 3,939.80

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Solution

The fourth proportional to 9,210.98, 13,804.91 and 3,939.80 is: 5,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,210.98 : 13,804.91 = 3,939.80 : x
  2. Step 2: Convert to fraction form
    9,210.98/13,804.91 = 3,939.80/x
  3. Step 3: Cross multiply
    9,210.98x = 13,804.91 × 3,939.80
  4. Step 4: Simplify right side
    9,210.98x = 54,388,525.24
  5. Step 5: Solve for x
    x = 54,388,525.24/9,210.98
  6. Step 6: Final answer
    x = 5,904.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.